Does a scratch in the combustion chamber ruin the head?
#4
How did that get there?
If it broke a ring or piston you might need a machine shop to check the valve seats too, for any particles that might have got between the valve and seat and ruined the smooth surface.
If it broke a ring or piston you might need a machine shop to check the valve seats too, for any particles that might have got between the valve and seat and ruined the smooth surface.